Summary
Olive mill waste-water was used for protein production in small-scale experiments, using non-sterilized medium without pH control. A 14 g/1 concentration of proteins, 61% chemical oxygen demand removal and a 58% reduction in total phenolic compounds were obtained using an Aspergillus niger strain. The removal of phenolic compounds resulted in a change in the colour of the waste-water from black to brown.
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Hamdi, M., Khadir, A. & Garcia, JL. The use of Aspergillus niger for the bioconversion of olive mill waste-waters. Appl Microbiol Biotechnol 34, 828–831 (1991). https://doi.org/10.1007/BF00169359
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DOI: https://doi.org/10.1007/BF00169359